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VOLUME 49 (1989) | ISSUE 4 | PAGE 218
Thermal drag of vortices in YBa2Cu3Ox superconducting films
Thermal drag of the intrinsic vortices of the transport current has been observed in YBa2Cu3Ox superconducting films. This drag is explained in terms of the entropy transported by the vortices. The appearance of a voltage without reaching a threshold value is found to occur as a result of an anomalously small pinning near the critical temperature of the superconductor.